package com.feelingjos.security.core.social.qq.connet;

import java.nio.charset.Charset;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.social.oauth2.AccessGrant;
import org.springframework.social.oauth2.OAuth2Template;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;

public class QQAuth2Template extends OAuth2Template {
	
	private Logger logger=LoggerFactory.getLogger(getClass()); 

	public QQAuth2Template(String clientId, String clientSecret, String authorizeUrl, String accessTokenUrl) {
		super(clientId, clientSecret, authorizeUrl, accessTokenUrl);
	    setUseParametersForClientAuthentication(true);
	}
	
	@Override
	protected AccessGrant postForAccessGrant(String accessTokenUrl, MultiValueMap<String, String> parameters) {
		String responseStr=getRestTemplate().postForObject(accessTokenUrl, parameters, String.class);
		logger.info("获取accessToken的响应:"+responseStr);
		
		String[] items=StringUtils.splitByWholeSeparatorPreserveAllTokens(responseStr, "&");
		String accessToken = StringUtils.substringAfterLast(items[0], "=");
		Long expiresIn = new Long(StringUtils.substringAfterLast(items[1], "="));
		String refreshToken = StringUtils.substringAfterLast(items[2], "=");
		
		return new AccessGrant(accessToken,null,refreshToken,expiresIn);
	}

	@Override
	protected RestTemplate createRestTemplate() {
		RestTemplate restTemplate =super.createRestTemplate();
		restTemplate.getMessageConverters().add(new StringHttpMessageConverter(Charset.forName("UTF-8")));
		return restTemplate;
	}
	
}
